aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86_64/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86_64/Kconfig')
-rw-r--r--arch/x86_64/Kconfig7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index d09437b..660a03a 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -329,12 +329,15 @@ config HPET_EMULATE_RTC
config GART_IOMMU
bool "IOMMU support"
+ default y
depends on PCI
help
- Support the K8 IOMMU. Needed to run systems with more than 4GB of memory
+ Support the IOMMU. Needed to run systems with more than 3GB of memory
properly with 32-bit PCI devices that do not support DAC (Double Address
Cycle). The IOMMU can be turned off at runtime with the iommu=off parameter.
Normally the kernel will take the right choice by itself.
+ This option includes a driver for the AMD Opteron/Athlon64 IOMMU
+ and a software emulation used on some other systems.
If unsure, say Y.
# need this always enabled with GART_IOMMU for the VIA workaround
@@ -515,6 +518,8 @@ config UID16
endmenu
+source "net/Kconfig"
+
source drivers/Kconfig
source "drivers/firmware/Kconfig"